I vote for English dub. It was awesome.
Let me elaborate a bit: I defend the idea that movies and games should be played with original languages. But for me, even if it still holds truth for the movies, my mind changing for the games. I love Japanese seiyuu's voices but companies using the same people. Nearly always. And it doesn't click with me. That is same for English as well. Whenever I hear Troy Baker in every game my mind automatically gets triggered (and have Troy Baker here as well
)
Even though Troy is here too, I recommend English voices for P4G. Besides it's superb quality, I heard new voices and they did their job perfectly.